Month: August 2018

Posted on

Observation: AT2018faf

AT2018faf, Type CV
Discovered 2018-08-04.351 by ZTF, mag 17.49 at discovery
R.A. = 21h08m05s.780, Decl. = +34°24’24”.96

Observer: Cedric Raguenaud, SW France
2018-08-16.125
Approx mag 18.25CV ±0.02 (dmag 0.108 on 60 reference stars from UCAC-4), ZP=29.286mag
0.25m/f4 refractor + EQ8
QHY183C, 0.5″/pixel
6x300s, bin 1×1

Posted on

Observation: 2018edw

2018edw, Type Ia in LEDA 2776665
Discovered 2018-07-13.410 by ZTF, mag 18.83 at discovery
R.A. = 19h08m40s.560, Decl. = +78°28’39”.78

Observer: Cedric Raguenaud, SW France
2018-08-16.069
No longer visible
0.25m/f4 + EQ8
QHY183C, 0.5″/pixel
6x300s, bin 1×1

Previous observation: 2018-07-28.907
Supernova was confirmed, but too faint for photometry.

Posted on

Observation: 2018epx

2018epx, Type Ia in LEDA 1806296
Discovered 2018-08-05.605 by ATLAS, mag 17.66 at discovery
R.A. = 23h29m53s.220, Decl. = +27°22’40”.90

Observer: Cedric Raguenaud, SW France
2018-08-16.000
Approx mag 15.99CV ±0.00 (dmag 0.061mag on 301 reference stars from UCAC-4), ZP=29.248mag
0.25m/f4 + EQ8
QHY183C, 0.5″/pixel
6x300x, bin 1×1

Posted on

Observation: 2018ddu

2018ddu, Type Ic in 2MASX J16354562+7141121
Discovered 2018-07-04.367 by ZTF
R.A. = 16h35m46s.560, Decl. = +71°41’15”.24

Observer: Cedric Raguenaud, SW France
2018-08-15.972
Approx mag 18.30CV ±0.06 (dmag 0.066mag on 192 reference stars from UCAC-4), ZP=29.420
0.25m/f4 refractor + EQ8
QHY183C, 0.5″/pixel
6x300s, bin 1×1

Posted on

Observation: 2018ctb

2018ctb, Type Ia in KUG 2158+198B
Discovered 2018-06-19.550 by All Sky Automated Survey for SuperNovae (ASAS-SN), mag 16.5 at discovery
R.A. = 22h01m08s.093, Decl. = +20°03’04”.24

Observer: Cedric Raguenaud, SW France
2018-08-14.911
Approx mag 17.05CV ±0.02 (dmag 0.057 on 149 reference stars from UCAC-4), ZP=29.400mag
0.25m/f4 refractor + EQ8
QHY183C, 0.5″/pixel
6x300s, bin 1×1